I had the Harbeths for about two years and after trying several tube amps I came to the conclusion that they work better with SS amps. I had a better match with a Quad 909 amp. About 3 weeks ago I had the opportunity to listen to aLeben 600 amp and a Shindo Moonbrison, speakers were Proac (forgot the model, they were big floor standers. The cost was $12000). Anyways, the sound was ok, but it lacked real dynamics, it was kind of soft and mellow, very colorful and rich sound, but after a while you missed the impact of low frequencies. The Leben 600 I believe is 32 w/c. The integrateds are less powerful than the amp. I would try a Rogue Stereo 90. 90 w/c and you can use KT 120's for a more powerful and richer sound.
I own the Stereo 90 and a Perseus combo. For me, it sounds better than the Leben. Just my humble opinion.
Dan
I own the Stereo 90 and a Perseus combo. For me, it sounds better than the Leben. Just my humble opinion.
Dan